Elevators & Escalators
Quality in Motion
DIAMOND TRAC GPM-III USA
DIAMOND TRAC
The Evolution of Mitsubishi Electric Quality
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The Evolution of Mitsubishi Electric Quality
Mitsubishi Electric elevator quality is constantly evolving. The machine-room-less elevator provides technological advances that deliver a world-class ride in terms of comfort, reliability and safety.


Reusing energy: Regenerative Converter (PCNV) (Optional)
Elevators usually travel using power from a power supply (powered operation), however, when they travel down with a heavy car load or up with a light car load (regenerative operation), the traction machine functions as a power generator.Although the power generated during traction machine operation is usually dissipated as heat, the regenerative converter transmits the power back to the distribution transformer and feeds it into the electrical network in the building along with electricity from the power supply. Compared to the same type of elevator without a regenerative converter, this system provides an energy-saving effect of up to 35 percent. (Reduction in CO2 emissions: 1400kg/year)
In addition, the regenerative converter has the effect of decreasing harmonic currents.


   Regenerative Converter (PCNV)




Reduced Torque Ripple for a Comfortable, Smooth Ride
The gearless traction machine with the new PM (permanent magnet) motor is packed with cutting-edge technology, such as our unique stator-core structure and built-in double brakes. This optimized motor design dramatically reduces the level of torque ripple for a smooth and quiet ride.
Reduced Torque Ripple for a Comfortable, Smooth Ride



Ensuring that Quality Remains First Rate
Our elevators include features designed to reduce the need for maintenance - such as double brakes built into the PM motor. During scheduled maintenance, equipment in the top of the hoistway is easily accessible from the maintenance platform on top of the elevator cage. In addition, Mitsubishi Electric's highly trained service personnel continually ensure that our elevators run smoothly and safely.





High-Speed Computer Processor
The high-accumulation LSI integrating digital control circuitry has significantly increased the speed of the computer processing, enabling precise control of the traction motor during acceleration and deceleration. This innovation delivers a quality ride with the least noise and vibration.
High-Speed Computer Processor



Innovative Technology increases Efficiency and Reliability
More technological advances, such as the high-accumulation LSI and low-noise PWM inverter, enable the VVVF inverter to deliver smooth, high-precision control of the traction machine. In addition, the IU (Inverter Unit) acts as a high-efficiency power supply circuit for the motor drive and, along with the PM motor, delivers greater energy savings. The result is a more efficient drive control.





Advanced Door Controls
VVVF* Inverter Control has been adopted to ensure smoother and quieter door operations, thereby enhancing passenger safety and product reliability. Our innovative door operation system employs a highly efficient "One-chip RISC microcomputer" which detects the constant variations on each floor in the door load, the strength of the wind, and even sediment in the sill grooves. It adjusts the door open and close speeds, as well as the door motor torque as needed for each floor using the Auto Tuning function. The learning-capable Door Load Detector immediately reverses the doors when abnormal load is detected on the doors.
*VVVF: Variable Voltage Variable Frequency.


  Advanced Door Controls

Brochure
Brochure
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Signal Fixtures
Signal Fixtures
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Specifications
Specifications
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Features
Features
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